Filter.



H. N. KILB'Y.

- FILTER.

APPLICATION FILED AUG'S, 1915. 1,21 1,859. Patented Jan. 9, 1917.

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AH. N. KILBY. FILTER.

APPLlcAloN FILED Auc.31. Isls.

` Patented Jan. 9,1917.

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H. N. KILBY. FILTR.

APPLICATION FILED AUG.3| 1915. 1,211,859. Patented Jan. 9,1917.

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Il' umrl l um UNITED STATES HERBERT N. KILBY, OF CLEVELAND, OHIO.

FILTER.

Application filed August 31, 1915.

To all whom t may concern:

Be it known that I,IIERBERT N. KILBY, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga. and State of Chio, have invented certain .new

and useful Improvements in Filters, of.

which the following is a specification.

The present invention is related to filters wherein various types of fluids may be cleansed or filtered by a circulation therethrough. In this connection, it may be stated that my lter is designed especially for use in collecting and filtering out sediment or caking material from such liquors as are produced in the manufacture of sugar.

The main object of my invention resides in the provision of a novel type of lock whereby the movable parts forming the inclosing casing structure may be securely clamped together and held in such clamped position. This new type of lock preferably takes the form of toggle lever means for movingthe locking member used both into and out of its operative position of engagement with the movable member.

Another object of my invention also resides in a structure whereby the locking member used is given such movement during its unlocking action that the locking member itself is moved laterally away from its holding position and then is swung outwardly to a position out of all possible interference with the movable casing part. Also, a further feature resides in so constructing and arranging this locking structure so that it is swung out of the path of the discharged vcake as it drops from the filter plates.

Still a further object of my invention resides in a counterweight structure so arranged that the movable Ipart of the casing may be manually operated with considerable ease.

Further objects of my invention will become more apparent from the following detailed description of the accompanying drawings wherein is shown the preferred embodiment'of my invention.

In `these drawings, similar characters of reference designate corresponding parts, and Figure 1 is a side elevation of a filter press with my invention applied thereto, Fig. 2 is a rear elevation of the structure shown in Fig. 1, Fig. 3 is a transverse cross section showing the movable part of the Specification of Letters Patent.

Serial No. 48,166. Y

casing swung to its inoperative position, Fig. 4 is an enlarged detail of my lock shown in connection with portions of the casing, Fig. 5 is a rear elevation of the structure sho-wn in Fig. 4, Figs. 6, 7, 8, 9 and 10 are detail views in perspective of the various elements comprising my improved lock, and, Fig. 11 is a detail View of one end of the locking member shown assembled and also shown partially in section. Y

The type of filter illustrated comprises an upright back plate 1 supported in any suitable manner upon suitable end standards 2. This back plate is provided along its upper edge with suitable lbearings 3, in which a shaft 4 is journaled. Coperatively mounted with respect to this back plate and pivotally mounted about the shaft 4 by means of the hinge structure shown at 5, is a semi-oval hood member 6. This hood member and the back plate coperate to form an inclosing casing structure for the filter elements designated generally by the reference numeral 7 and which filter elements are so constructed that the cake or sediment is filtered out'of the juice in the usual manner. Liquor is introduced to the interior ofthe casing through the inlet pipe shown at 8 and when filtered is withdrawn from the filter elements 7 by means of the "outlet pipes shown aty 9 and 10, the pipes 9 all being connected with a single pipe shown at 1l. l

The lower longitudinal edge of the back plate 1 is also provided with a series of bearings shown at 12 to support a shaft 13, which shaft, together with the shaft 4, form a means for supporting and operating the locking structure proper. This looking structure comprises a series of locking members disposed side by side along the opposite longitudinal lines of jointure between the hood and back plate, the locking members themselves being rectangular in shape and designated by the reference numeral 14. As is indicated with more clearness in Fig. 6, these locking members have their longitudinal sides provided with slotted openings 16 through which the shafts 4 and 13 pass.

Patented J an. 9, 1917.

The forward end of each of these locking Y f upper andloweredges. These lockingmembers are actuated by means of toggles formed of toggle arms 20 rigidly keyed respectively to the shafts 4 and'13 and' pivotally carrying at their forward ends, as indicated at 21, toggle links 22, These toggle links are also pivotally connected at their oppositeendsby means of pins or bolts, as shown at 23, to the locking members and these pins further carry a roller 24 out to one sideof the locking members, all afterV a slight turningoff the toggle arms 20 and a consequent pull upon thetoggleli'nks 22. This breaking actionI "of the togglesthen causes a corresponding p'ull on the `locking members 14 to movetheinout lof clamping engagement with the lugs 19,- which movement is: permitted by'fmeans of' the elongated openingsl. Furtherf turning of* these' Y shaftsr'will bring therollers 24 into engagementwith the inner faces of the guard 1nembervs25 to maintainthese toggles in an uncramped" position, althoughv the main use for these guardspccur's when lthe casing parts are being lockedl together rather thanunlocked. However,` this further rotation of the Ashafts. then causesv ai swinging movement ofthe locking'I members 14' from the dotted positionl shown i`n Figf4, to the full` line position. Tolock the same',the 'shafts 4A and l13kv are rotated in a"reverse directie-nf andf because of the guards 25, the toggles will Ybe maintained in anuncrampedv positionso. vlongl as the rollers 24K4 are in'engagementv with their inner `faces and this causes a return movement of the locking members 14 from-whe full line position ofv Fig. 4 to Vthe dotted position in the same figure or until these locking members engageI shouldersl26 located adjacent eachiof the lugs 19. Assoon-V as the rollers 24 leave thel guards 25, thetogglesY are again straightened out,

sincecontinued rotative movementof the loclnnginembers is preventedjbecause ofv their engagement with-these shoulders 26. This straightening Iof the toggles moves the bolts 17 into clamping engagement with the lugsI 19t andas a result,.the hood 6 is held in firmengagement with the back plate. In

order" that the toggle arm 2O will'not pass by the Vcenter and again unlock the joint', I'have provided the gearl 29 with a` stop pin 29a,

as isshown dotted in Fig. 1.l 'This stop` pin is arranged to strike the upper edge of one of the end standards 2 when the toggle has been straightenedout and in this manner, further rotation of the shafts 4 and 13 is impossible.

In order that the shafts 4 and 13 may be operated simultaneously, I have provided each of them with a lever 27 and pivotally connected the ends' of these levers by means The of the connecting rod shown at 28.

l'shaft 4, is also extended at one endv to rigidly carry' avgear 29 and loosely carry a hand` wheel 30 whose hub 31f is formed to present a pinion, as is shown at 32. The gear wheel 29'is rigid with they shaft, while the hand wheel 30 and pinion 32 are rotatably mountf ed on the same. This pinion 32v meshes with a gear 33 vsuitably mounted on a shaft 34, which latter is held in positionl by means of one of the end standards 2"'and the-"outstanding bracket shown at 35; The shaft 34 also rigidlyy carries'a pinion" 36, the ar-4 rangement being suchI so-that rotation of' the hand wheel 30 causes arotation "of the gear 33 because of its engagement with the pinion 32. In this manner the shaft 34 isv rotated and consequently the'shaft 4 'is rotated 'very slightlyy compared with the speed of rotation ofjthe hand wheel 33 bymeans of the driving connection between thegear bracket 35, a spring38 4beingconfined with! in this housing to retract a pin` 'shown'at 39. The lower end of this pinlis'ioper'atively connected with the handle shown at 40,".

whose'hub 41 isprovided with acam or in'- '95 29 and the piniorr'36. In' orderto hold' the hood in any position off opening, I haveA formedA a housing 37 on the underside of theV clined face, vas shown atl 42.` The turning of the handle 40from'1the'position shown in"` Fig; 2, causes a 'retraction of the pin 39.

against the tensionofl the spr-ing38. Return movement permits this pin tov come into engagement with the teeth of the gear 36 and, 'thus the hood is securely locked` ink any desired position.`

In order to further lighten the load in opening'the casing, I have provided each end.

of the casing with an upstandingsarm 43, the upperzends of these arms'being turned rearwardly, as shown at 441 "a'distance to:

support' a' Counterweight `45.A tothe rear of the' pivotconnection between the'hoodandback plate. This counterweight is so arranged: that it almost over-balancesthe weight 'of the hood itself and in 'order that the opening" movement may begotten by the turning ofv the shaft 4, as has beenV already related, I have also providedfthisshaft with a pair of outstanding levers 46 whose ends 47 are designedito Iengage the-pin-extensions 48 carriedby eachendof the counter-weight, as is shown. It will benoted, however,"that these armsare locatedsome `considerable distanceaway from the pins 48 and this arrangement is provided so that the locking members may be unlocked and swung out of a position of interference before the hood is given an opening movement.

From the foregoing, it will be apparent that I have provided avery eicient type of lock for holding the parts of the casing in their locked position. Also, this locking means may be manually operatedand continued movement of the shaft 4 also causes an opening movement of the hood 6. This hood-may be locked in any desired position of opening by means of the locking structure already referred to and this locking structure is supplemented by the locking effect produced between the gears and pinions'.

What I claim, is:

l. A locking structure for a two-part filter casing, one of which is movable with respect to the other comprising a locking member adapted to lock the parts of said casing together, toggle lever means operable to first move said member to a locking position and then move it laterally into holding engagement with the casing, and means for keeping said toggle uncramped until said locking member has assumed a locking position.

2. A locking structure for a two-part filter casing, one of which is movable with respect to the other comprising a locking member adapted to lock the parts of said casing together, said member being formed with a slotted pivot opening, a pivot support coperating with said opening, and means whereby said member is swung about its support to assume a locking position and then moved laterally in the direction of the slotted opening into holding engagement with the casing.

3. A locking structure for a two-part filter casing one of which is movable with respect to the other comprising a pivotally supported locking member, and toggle lever means operable to first swing said member about its pivot into a locking position and then move it laterally into holding engagement with said casing.

4. A locking structure for a two part iilter casing, one of which is movable with respect to the other, and means for locking said two parts together comprising a pivotally supported locking member carried by one of said parts and adapted to engage the other part, and toggle lever means for actuating said member to first move it laterally to release its holding engagement and then to swing it about its pivot away from said second named part.

5. A locking structure for a two part filter casing, one of which is movable with respect to the other', comprising a locking member carried by one of said parts and adapted to engage the other part, and toggle lever means for actuating said member to first swing it into a locking position and then to straighten said toggle to bring it into clamping engagement with said second named part.

6. A locking structure for a twopart filter casing, one of which is movable with respect to the other, comprising a locking member carried by one of said parts and adapted to engage the other part, toggle lever means for actuating said member to first swing it into a locking position and then to straighten said toggle to bring it into clamping engagement with saidl second named part, and means for keeping said toggle uncramped until it has assumed a locking position.

7 A locking structure for a two part filter casing, one of which is movable with respect to the other, comprising a shaft located parallel with one line of jointure of said parts, a locking member having a slot-- ted opening by which it is supported on said shaft, said member being adapted to engage the movable part of said casing, a toggle arm rigidly carried by said shaft, and a toggle link pivotally connected at one end to said arm and at its other end to said member.

8. A locking structure for a two part filter casing, one of which is movable with respect to the other, comprising a shaft located parallel with one line of jointure of said parts, a locking member having a slotted opening by which it is supported on said shaft, said member being adapted to engage the movable part of said casing, a toggle arm rigidly carried by said shaft, a toggle link pivotally connected at one end to said arm and at its other end to said member, and a guard structure arranged to keep said toggle arm and toggle link uncramped until said member has been moved to a locking position with respect to said movable part.

9. A locking structure for a two part filter casing, one of which is movable with respect to the other, comprising a shaft located parallel with one line of jointure of said parts, a locking member having a slotted opening by which it is supported on said shaft, said member being adapted to engage the movable part of said casing, a toggle arm rigidly carried by said shaft, a toggle link pivotally connected at one end to said arm and at its other end to said member, a counterweight structure carried by said movable part, and an actuating connection between said shaft and said movable part arranged so said movable part is engaged for movement only after said locking member has been moved out of engagement.

10. A filter press comprising an upright back plate, a semi-oval hood member pivotallymounted to swing away from said back plate, shafts disposed adjacent the upper and lower lines of jointure of said plate and and lower'lines of jointure of said plateand' hood, looking members each having a slotted opening by which they are supported on said shafts, a toggle arm earried by said' shafts, a toggle link for each arm, saidlinks being pivotally connected at one endj to said Copies of this patent may be obtained for arms and to said looking members at their opposite ends, a driving connection between f said shafts, upwardly promoting arms carried by said hood shaped to project rearwardly beyond the pivot support for said parts7 a'counterweight structure carried by the rearwardly projecting portions of said arms, and' an actuating connection between said shaft and. said hood arranged so thaty said hood is engaged for movement only after said looking members have been moved out of lockingV engagement.

'-In testimony whereof I' ailix my signature in presence of two witnesses.

HERBERT N. KILBY. Witnesses Y WALTER` E. L. BooK,

A. L. PHELPs.

ve ents each, by addressing thel Commissioner of latnts,

Washington, D; C. 

